Iridescent Rainbow-Shell Ammonite Group
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Large polished nacreous Ammonite - Douvilleiceras mammillatumBeautiful 18 cm ammonite Douvilleiceras mammillatumIridescent Madagascar AmmoniteApr 26, 2026Large Polished Ammonite FossilApr 26, 2026Wonderful 16.4 cm nacreous Ammonite - Aioloceras besairiei2 3/4' x 2' Fossil Ammonite Sliced. Polished Natural Sliced Segaments from Madagascar.4 days LeftMassive 11 1/4" Cut Ammonite Fossil, Amazing Colors, Highly Polished Example. Largest example weApr 19, 20269.5 cm nacreous ammonite Aioloceras besairieiLarge Split Ammonite Fossil PairApr 26, 2026Large 4 1/2" Cut Ammonite Fossil, Amazing Colors, Highly Polished Example. Harder to find this big!Apr 19, 2026Ammonite Fossil, Found in Madagascar 240-66 Million Years Old, Devonian Period to the Cretaceous Per4 days LeftHighly Polished Ammonite Fossil, Irridecent with Striking Colors4 days LeftBeautiful Irredescent Polished Ammonite Fossil, Amazing Colors, Highly Polished Example with amazingApr 19, 2026Split Ammonite Fossil PairApr 26, 2026Nice pair of cut & Polished Ammonite Fossil, Amazing Colors, Highly Polished ExamplesApr 19, 2026Nice pair of cut & Polished Ammonite Fossil, Amazing Colors, Highly Polished ExamplesApr 19, 2026 
